This model relates to a dental orthodontic device. The main structure includes a fixing seat for bonding and fixing on a side of a tooth adjacent to the tongue, a connecting part formed on the side of the fixing seat away from the tooth for covering an elastic member, and a forming A limiting head on the side of the connecting portion away from the fixing seat, a supporting portion defined on the side of the limiting head adjacent to the connecting portion, and a supporting portion formed on the side of the limiting head away from the connecting portion Position the recess. With the above structure, a lingual buckle with a positioning recess on the top surface is provided, so that users can directly use hand tools commonly used in dentistry to place the front end of the hand tool in the positioning recess to directly use the hand tool to resist and adjust the lingual buckle The location is not only more convenient, safe and efficient in operation, but also saves the cost of purchasing special hand tools.本新型為有關一種牙科矯正裝置，主要結構包括一供黏結固定於一牙齒鄰近舌頭之一側之固定座、一形成於該固定座背離該牙齒一側供套設彈性件之連接部、一形成於該連接部背離該固定座一側之限位頭部、一界定於該限位頭部鄰近該連接部一側之支撐部、及一形成於該限位頭部背離該連接部一側之定位凹部。藉上述結構提供一頂面具有定位凹部之舌側扣，讓使用者可直接利用牙科常用之手工具，將手工具的前端置於定位凹部中，以直接利用手工具抵持、調整舌側扣的位置，不但操作上更為方便順手、安全有效率外，也可節省購置專用手工具之費用。
